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Other Assets - Schedule of Disclosure of the Bond Portfolio Stated at Fair Value (Details) - Bonds - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Maturity of bond portfolio, stated at fair value	$ 127.2	$ 104.4
Within one year
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Maturity of bond portfolio, stated at fair value	0.4	1.3
After one year but not more than five years
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Maturity of bond portfolio, stated at fair value	43.1	45.7
More than five years
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]
Maturity of bond portfolio, stated at fair value	$ 83.7	$ 57.4

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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Fair value of other financial assets maturity amount.

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